CN108150517B - Suction cup - Google Patents

Suction cup Download PDF

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Publication number
CN108150517B
CN108150517B CN201711429743.0A CN201711429743A CN108150517B CN 108150517 B CN108150517 B CN 108150517B CN 201711429743 A CN201711429743 A CN 201711429743A CN 108150517 B CN108150517 B CN 108150517B
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CN
China
Prior art keywords
air
hole
valve
air inlet
pressure plate
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Application number
CN201711429743.0A
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Chinese (zh)
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CN108150517A (en
Inventor
李耀强
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Rizhao Rijing Electronics Co.,Ltd.
Original Assignee
Fuzhou Changle Huizhi Technology Service Co Ltd
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Priority to CN201711429743.0A priority Critical patent/CN108150517B/en
Publication of CN108150517A publication Critical patent/CN108150517A/en
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Publication of CN108150517B publication Critical patent/CN108150517B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B47/00Suction cups for attaching purposes; Equivalent means using adhesives

Abstract

A suction sucker mainly comprises a sucker and a pressure plate, wherein the pressure plate is pressed on the periphery of the sucker, the sucker is a plane which can be stretched and deformed under the action of external force, an air nozzle protruding upwards is arranged on the top of the pressure plate, the pressure plate presses the sucker on the surface of an adsorbate, and then an air pump is used for pumping air between the pressure plate and the sucker away through the air nozzle, so that a vacuum space is formed between the pressure plate and the sucker, and the sucker is pulled to deform towards the pressure plate, a vacuum space is also formed between the sucker and the surface of the adsorbate, so that the sucker is tightly sucked on the surface of the adsorbate, an air inlet valve hole is arranged on the pressure plate, an air inlet valve is screwed into the air inlet valve hole to separate the inner hole of the pressure plate from the outside air, when the sucker is to be taken away from the surface of an adsorbate, the air inlet valve is screwed outwards, so that outside air can enter the inner hole of the pressure plate, and the sucker can be easily taken down from the surface of the adsorbate.

Description

Suction cup
Technical Field
The invention relates to a suction sucker with an air inlet hole, belonging to the optimization technology of suckers.
Background
The vacuum chuck can be easily adsorbed on the surfaces of flat and smooth adsorbates such as glass, ceramic tiles and the like for hanging and grabbing objects. The vacuum chuck can be moved and changed at will, so that the vacuum chuck is very convenient to use. The traditional vacuum chuck is generally made of plastic materials with certain rigidity and certain flexibility, such as silicon rubber or PVC materials, polyurethane or nitrile rubber or vinyl-containing polymers. Most vacuum chuck's structure is the cavity conical body, the sucking disc wall towards adsorbate surface is the upwards sunken toper in middle part, support the sucking disc during use to press the sucking disc middle part to the adsorbate surface, the air that makes the toper intracavity of sucking disc is extruded, then release the sucking disc, the sucking disc produces the negative pressure in the toper intracavity of sucking disc when the process that resets by oneself, make the sucking disc can adsorb the surface at article, perhaps support the sucking disc to extract sucking disc intracavity air again behind the adsorbate surface, make the sucking disc intracavity form the negative pressure. The suction force is generated by the suction disc through self deformation or air suction, when the suction disc is used, the inner wall and the peripheral edge of the suction disc can displace and continuously receive inward pulling force, so that the peripheral edge of the suction disc can move inwards, and the air leakage phenomenon is easy to occur, so that the using function of the suction disc is influenced.
The patent application with the application number of 2016211629312 discloses a suction cup, which sucks away air between a pressure plate and the suction cup through an air pump, so that the suction cup deforms towards the direction of a tray, a vacuum space is formed between the suction cup and an adsorbate, the suction cup is not easy to leak air, when the suction cup is not enough to be taken away from the surface of the adsorbate, a suction valve needs to be pulled out outwards, and the suction valve is difficult to pull out due to the influence of vacuum suction between the tray and the suction cup.
Therefore, there is a need to find a suction cup that can be more easily removed from an absorbent article.
Disclosure of Invention
The purpose of the invention is: provided is a suction cup which can be more easily removed from an object to be sucked.
The technical scheme of the invention is as follows: the utility model provides a suction cup mainly includes sucking disc 1, pressure disk 2, and the pressure disk pressure is at sucking disc edge all around, and the plane of sucking disc for can tensile deformation under the effect of external force is equipped with the prominent air cock 21 that makes progress on the pressure disk top, and the air pump passes through the air suction of air cock in with the pressure disk, its characterized in that: the air suction sucker also comprises an air inlet valve 7, an air inlet valve hole 22 is also formed in the pressure plate, and the air inlet valve is a cylinder with a conical head; the air inlet valve hole is communicated with the inner hole of the pressure plate, and comprises an outer hole in threaded connection with the air inlet valve and a cylindrical communication hole for communicating the outer hole with the inner hole of the pressure plate; the shape of the outer hole is the same as that of the air inlet valve, and when the air inlet valve is screwed into the outer hole, the outer hole and the air inlet valve form tight fit to separate an inner hole of the pressure plate from outside air; an air inlet hole 23 which penetrates through the pressure plate wall and is connected with the outside air is formed in the inner wall of the conical hole of the outer hole, the air inlet valve is screwed outwards, the conical head of the air inlet valve is separated from the inner wall of the conical hole of the outer hole, and the outside air can enter the inner hole of the pressure plate.
The end surface of the cylinder far away from the conical head is provided with a straight or cross groove matched with the rotating tool.
When the sucking disc is to be taken down, the rotating tool is inserted into the straight or cross-shaped groove which sucks the air inlet valve to rotate reversely, so that the air inlet valve can leave the air inlet hole, the external air can flow into the inner hole of the pressure plate, the air pressure inside and outside the pressure plate is balanced, the sucking disc can reset automatically, and the sucking disc can be easily taken away from the surface of an adsorbate.
An inwards-concave valve groove is formed in the outer wall of the pressure plate, and one end, located outside the pressure plate, of the air inlet valve hole is arranged in the valve groove; the air inlet valve is screwed into the air inlet valve hole to block the air inlet hole, and then the air inlet valve enters the valve groove.
The object hanging sucker further comprises a sealing ring 6, the sealing ring is made of soft materials and is a hollow circular ring, and the sealing ring is adhered to the edge of the back face of the sucker, back to the sucker screw, of the sucker through glue.
The sealing ring is made of soft rubber or PP (polypropylene) rubber.
The wall surface of the sealing ring back to the sucker is provided with more than two rings of deformation rings protruding outwards, and a gap is reserved between every two adjacent deformation rings.
Advantageous effects
1. Be equipped with outside outstanding air cock on the pressure disk top, the pressure disk presses the sucking disc on the adsorbate surface, the air that reuse air pump passes through the air cock between with pressure disk and sucking disc is taken away, make and form vacuum space between pressure disk and the sucking disc, thereby the pulling sucking disc is out of shape to the direction of pressure disk, also form a vacuum space between sucking disc and adsorbate surface, thereby make the sucking disc inhale tightly on the adsorbate surface, be equipped with the inlet valve hole on the pressure disk, the admission valve is twisted soon and is got into the inlet valve hole and make pressure disk hole and external air separate, when will taking the sucking disc from the adsorbate surface, outwards twist soon the admission valve, make external air can get into the pressure disk hole, thereby can easily take off the sucking disc from the adsorbate surface.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic burst view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention in an initial state;
FIG. 4 is a schematic cross-sectional view of the present invention as it is adsorbed onto the surface of an adsorbent;
FIG. 5 is an enlarged view of a portion of FIG. 3;
FIG. 6 is a schematic perspective view of the intake valve of the present invention;
fig. 7 is a schematic perspective cross-sectional view of a connecting plate of the present invention.
Detailed Description
As shown in fig. 1 to 7, a suction cup mainly comprises a suction cup 1 and a pressure plate 2, wherein the pressure plate is pressed on the periphery of the suction cup, the suction cup is a plane capable of stretching and deforming under the action of external force, an upward protruding air nozzle 21 is arranged on the top of the pressure plate, an air pump sucks out air in the pressure plate through the air nozzle, negative pressure is generated between the inner wall of the pressure plate and the suction cup, the middle of the suction cup deforms towards the direction of the pressure plate, and a vacuum space is formed between the suction cup and the surface of an adsorbate, so that the suction cup is tightly sucked on the surface of the adsorbate. Because the inner hole of the pressure plate forms negative pressure, a pulling force towards the direction of the suction cup is generated on the pressure plate, so that the suction cup can be pressed on the surface of an adsorbate by the pressure plate.
The air suction sucker also comprises an air inlet valve 7, an air inlet valve hole 22 is further formed in the pressure plate, the air inlet valve is a cylinder with a conical head, and a linear or cross-shaped groove matched with the rotating tool is formed in the end face of the cylinder far away from the conical head; the air inlet valve hole is communicated with the inner hole of the pressure plate, and comprises an outer hole in threaded connection with the air inlet valve and a cylindrical communication hole for communicating the outer hole with the inner hole of the pressure plate; the shape of the outer hole is the same as that of the air inlet valve, and when the air inlet valve is screwed into the outer hole, the outer hole and the air inlet valve form tight fit to separate an inner hole of the pressure plate from outside air; an air inlet 23 penetrating through the pressure plate wall and connected with the outside air is arranged on the cylindrical hole wall of the outer hole close to the conical hole, an inner thread is arranged on the inner wall of an air inlet valve hole between the air inlet and the outer wall of the pressure plate, an outer thread matched with the inner thread of the air inlet valve hole is arranged on the outer wall of the air inlet valve, after the air inlet valve is screwed into the outer hole of the air inlet valve hole, the air inlet valve and the outer hole form tight fit, the outer hole is fully filled with the air inlet valve, the air inlet is sealed, and the air inlet cannot be communicated; when the air inlet valve is screwed outwards by a rotating tool, the conical head of the air inlet valve moves outwards to leave the inner wall of the conical hole of the outer hole, meanwhile, the cylindrical part of the air inlet valve leaves the air inlet hole, a gap is formed between the conical head of the air inlet valve and the inner wall of the conical hole of the outer hole, and outside air flows into the inner cavity of the pressure plate through the air inlet hole 23.
The position that the inlet port is connected with the outer hole can also be established on the bell mouth inner wall of outer hole, as long as twist the admission valve outwards, make the conical head of admission valve leave the bell mouth inner wall of outer hole, external air just can get into the pressure disk hole.
The suction sucker also comprises a suction valve 3, a spring 4 and a connecting plate 5; the air suction valve comprises a valve core and a valve rod, the valve core is a conical body, and the valve rod is arranged at the center of the conical bottom of the valve core; the connecting plate 5 is provided with an air suction through hole 51, the diameter of the valve rod is smaller than the aperture of the air suction through hole, a circle of connecting groove 52 is arranged on the wall surface of the connecting plate facing the pressure plate around the air suction through hole, the inner wall of the connecting groove is provided with an internal thread matched with the external thread on the air tap, a cylindrical connecting body 53 is formed between the connecting groove and the air suction through hole, and the wall surface of the connecting body facing the pressure plate is provided with a cylindrical bracket 54 with a grid hole protruding towards; a connecting hole communicated with the inner hole of the pressure plate is arranged in the air faucet, an inward protruding flange is arranged in the connecting hole, and the wall surface of the flange facing the outlet of the air faucet is matched with a valve core of the air suction valve in a positive-negative mode; the valve rod sleeved with the spring is inserted into the support 54, the spring enters the support, the tail end of the valve rod enters the air suction through hole, the conical bottom of the valve core abuts against the support, the air tap of the pressure plate is screwed into the connecting groove, the valve core is ejected from the support under the tension of the spring, and the valve core enters the flange and forms tight fit with the flange.
When the sucker needs to be sucked on the surface of an adsorbate, the sucker is tightly pressed on the surface of the adsorbate, then the air inlet nozzle of the air pump is inserted into the air suction through hole in the connecting plate, the air pump sucks air outwards during working, the spring is contracted by overcoming the tension of the spring, the valve core moves towards the air inlet nozzle of the air pump, so that the valve core is separated from the flange, a gap is formed between the valve core and the flange, air in the pressure plate sequentially passes through the grids on the support and the gap of the spring from the gap between the valve core and the flange to reach the air suction through hole, and then the air is sucked into the air inlet nozzle of the air pump from the gap between the air suction through hole and the valve rod, the more the air is pumped by the air pump, the larger the. After the air inlet nozzle of the air pump is pulled out, the negative pressure space is formed in the pressure plate, so that the valve core is sucked towards the pressure plate, the valve core is abutted against the flange, and air leakage is avoided. When the sucking disc is to be taken down, the rotating tool is inserted into the straight or cross-shaped groove which sucks the air inlet valve to rotate reversely, so that the air inlet valve can leave the air inlet hole, the external air can flow into the inner hole of the pressure plate, the air pressure inside and outside the pressure plate is balanced, the sucking disc can reset automatically, and the sucking disc can be easily taken away from the surface of an adsorbate.
An inward sunken valve groove is formed in the outer wall of the pressure plate, and one end, located outside the pressure plate, of the air inlet valve hole is arranged in the valve groove. The air inlet valve is screwed into the air inlet valve hole to block the air inlet hole, and the air inlet valve enters the valve groove, so that the air suction sucking disc of the present invention will not protrude from the surface of the pressure plate in daily state.
The wall surface of the sucking disc positioned in the pressure plate is provided with a plurality of circles of folds. The corrugations provide the suction cup with greater deformability as the suction cup deforms outwardly. Multiple sets of corrugations may be provided on the suction cup as desired. Because the sucking disc is a plane, the sucking disc is sucked to deform towards the inner hole of the pressure plate completely by the negative pressure formed in the pressure plate, and the sucking disc is provided with wrinkles, so that the deformation capacity of the sucking disc is enhanced.
And a plurality of reinforcing ribs protruding towards the direction of the pressing plate are evenly arranged on the wall surface of the sucking disc between the crease and the center of the sucking disc.
The suction sucker further comprises a sealing ring 6, the sealing ring is made of soft materials and is a hollow circular ring, and the sealing ring is adhered to the edge of the back face of the sucker, back to the sucker screw, of the sucker through glue. The material that the sealing ring adopted is soft rubber or PP glues, makes the deformability of sealing ring stronger, can fill and level up the surface that has the line or salient point, avoids leaking gas, makes the range of application of sucking disc wider.
The wall surface of the sealing ring back to the sucker is provided with more than two rings of deformation rings protruding outwards, and a gap is reserved between every two adjacent deformation rings.
The deformation ring is isosceles trapezoid, and the tail end of the deformation ring, which is far away from the sucker, is a ladder bottom. The waist of the deformation ring can be made into an arc shape. When the sucking disc pressed the seal ring to the adsorbate surface, the ring that warp can warp to the clearance between the ring that warp to can adapt to the unevenness of adsorbate surface certain degree, make the application scope of sucking disc wider.
The deformation ring is in a sawtooth shape with the tail end inclined outwards the sucker.
The sucking disc is made of materials such as silicon rubber or PVC materials or polyurethane or nitrile rubber or vinyl-containing polymers, and has tensile deformability under the action of external force.
The above-mentioned embodiments are only used for illustrating the application of the present invention, and are not meant to be limiting, and those skilled in the art should make various changes or substitutions within the spirit of the present invention, and shall fall within the protection scope of the present invention.

Claims (6)

1. The utility model provides a suction cup, includes sucking disc (1), pressure disk (2), and the pressure disk pressure is at sucking disc edge all around, and the plane of sucking disc for can tensile deformation under the effect of external force is equipped with upwards prominent air cock (21) on the pressure disk top, and the air pump passes through the air suction of air cock in with the pressure disk, its characterized in that: the suction sucker also comprises a suction valve (3), a spring (4) and a connecting plate (5); the air suction valve comprises a valve core and a valve rod, the valve core is a conical body, and the valve rod is arranged at the center of the conical bottom of the valve core; a suction through hole (51) is formed in the connecting plate (5), the diameter of the valve rod is smaller than the aperture of the suction through hole, a circle of connecting groove (52) is formed in the wall surface, facing the pressure plate, of the connecting plate around the suction through hole, an internal thread matched with the external thread on the air tap is arranged on the inner wall of the connecting groove, a cylindrical connecting body (53) is formed between the connecting groove and the suction through hole, and a cylindrical support (54) with a grid hole and protruding towards the pressure plate is arranged on the wall surface, facing the; a connecting hole communicated with the inner hole of the pressure plate is arranged in the air faucet, an inward protruding flange is arranged in the connecting hole, and the wall surface of the flange facing the outlet of the air faucet is matched with a valve core of the air suction valve in a positive-negative mode; inserting the valve rod sleeved with the spring into the support (54), enabling the spring to enter the support, enabling the tail end of the valve rod to enter the air suction through hole, enabling the conical bottom of the valve core to abut against the support, screwing the air tap of the pressure plate into the connecting groove, enabling the valve core to be ejected from the support under the tension of the spring, enabling the valve core to enter the flange and form tight fit with the flange; when the sucker needs to be sucked on the surface of an adsorbate, the sucker is tightly pressed on the surface of the adsorbate, then an air inlet nozzle of an air pump is inserted into an air suction through hole in a connecting plate, the air pump sucks air outwards when working, overcomes the tension of a spring, so that the spring contracts, a valve core moves towards the air inlet nozzle of the air pump, so that the valve core leaves a flange, a gap is generated between the valve core and the flange, air in a pressure plate sequentially passes through a grid on a support and the gap of the spring from the gap between the valve core and the flange to reach the air suction through hole, and then the air is sucked into the air inlet nozzle of the air pump from the gap between the air suction through hole and a valve rod, the more the air is pumped by the air pump, the larger the deformation; after the air inlet nozzle of the air pump is pulled out, the valve core is sucked towards the direction of the pressure plate due to the negative pressure space formed in the pressure plate, so that the valve core is abutted against the flange, and air leakage is avoided; the air suction sucker also comprises an air inlet valve (7), an air inlet valve hole (22) is further formed in the pressure plate, and the air inlet valve is a cylinder with a conical head; the air inlet valve hole is communicated with the inner hole of the pressure plate, and comprises an outer hole in threaded connection with the air inlet valve and a cylindrical communication hole for communicating the outer hole with the inner hole of the pressure plate; the shape of the outer hole is the same as that of the air inlet valve, and when the air inlet valve is screwed into the outer hole, the outer hole and the air inlet valve form tight fit to separate an inner hole of the pressure plate from outside air; an air inlet hole (23) which penetrates through the wall of the pressure plate and is connected with the outside air is arranged on the inner wall of the conical hole of the outer hole, the air inlet valve is screwed outwards, so that the conical head of the air inlet valve leaves the inner wall of the conical hole of the outer hole, and the outside air can enter the inner hole of the pressure plate; an inwards-concave valve groove is formed in the outer wall of the pressure plate, and one end, located outside the pressure plate, of the air inlet valve hole is arranged in the valve groove; the air inlet valve is screwed into the air inlet valve hole to block the air inlet hole, and then the air inlet valve enters the valve groove.
2. Suction cup according to claim 1, characterized in that: the end surface of the cylinder far away from the conical head is provided with a straight or cross groove matched with the rotating tool.
3. Suction cup according to claim 2, characterized in that: when the sucking disc will be taken off, will rotate the word or the cross recess reverse rotation that the instrument inserted the admission valve, just can make the admission valve leave the inlet port, make external air can flow into the pressure disk hole, make the inside and outside atmospheric pressure of pressure disk balanced, the sucking disc will reset by oneself to can easily take the sucking disc from the adsorbate surface.
4. Suction cup according to claim 1, characterized in that: the suction sucker further comprises a sealing ring (6), the sealing ring is made of soft materials and is a hollow circular ring, and the sealing ring is adhered to the edge of the back face of the sucker, back to the pressure plate, of the sucker through glue.
5. Suction cup according to claim 4, characterized in that: the sealing ring is made of soft rubber or PP (polypropylene) rubber.
6. Suction cup according to claim 5, characterized in that: the wall surface of the sealing ring back to the sucker is provided with more than two rings of deformation rings protruding outwards, and a gap is reserved between every two adjacent deformation rings.
CN201711429743.0A 2016-11-06 2016-11-06 Suction cup Active CN108150517B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711429743.0A CN108150517B (en) 2016-11-06 2016-11-06 Suction cup

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610971554.5A CN106402134B (en) 2016-11-06 2016-11-06 A kind of air-breathing sucker with air admission hole
CN201711429743.0A CN108150517B (en) 2016-11-06 2016-11-06 Suction cup

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201610971554.5A Division CN106402134B (en) 2016-11-06 2016-11-06 A kind of air-breathing sucker with air admission hole

Publications (2)

Publication Number Publication Date
CN108150517A CN108150517A (en) 2018-06-12
CN108150517B true CN108150517B (en) 2020-09-08

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Family Applications (3)

Application Number Title Priority Date Filing Date
CN201711429743.0A Active CN108150517B (en) 2016-11-06 2016-11-06 Suction cup
CN201610971554.5A Active CN106402134B (en) 2016-11-06 2016-11-06 A kind of air-breathing sucker with air admission hole
CN201711429742.6A Active CN108105252B (en) 2016-11-06 2016-11-06 Sucking disc with air inlet hole

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN201610971554.5A Active CN106402134B (en) 2016-11-06 2016-11-06 A kind of air-breathing sucker with air admission hole
CN201711429742.6A Active CN108105252B (en) 2016-11-06 2016-11-06 Sucking disc with air inlet hole

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CN (3) CN108150517B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763112A (en) * 2017-02-25 2017-05-31 中山市元亨家居用品有限公司 Vacuum lifting appliance
CN106763113A (en) * 2017-03-06 2017-05-31 中山市元亨家居用品有限公司 Sucking disc and vacuum-pumping lifting appliance with same
CN107081403A (en) * 2017-05-31 2017-08-22 安徽江淮汽车集团股份有限公司 Press diel
CN111102283A (en) * 2018-10-25 2020-05-05 镫顺实业股份有限公司 Suction cup
CN111434935B (en) * 2019-01-15 2021-11-30 镫顺实业股份有限公司 Suction cup
CN114439280B (en) * 2022-01-21 2023-10-31 重庆西部展览策划有限公司 Exhibition booth and construction method thereof

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CN2558807Y (en) * 2002-06-26 2003-07-02 福茂塑料金属制品(嘉兴)有限公司 Suction cup
CN201415911Y (en) * 2009-03-10 2010-03-03 吕晓光 Strong vacuum sucking device
CN204851964U (en) * 2015-06-03 2015-12-09 林伟福 Powerful electromagnetic chuck device

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US5685513A (en) * 1995-05-17 1997-11-11 Nihon Biso Co., Ltd. Vacuum-suction attachment pad
DE202007006607U1 (en) * 2007-05-09 2007-07-19 Chen, Lung-Chih, Tanzih Suction cup for fixing object at planar surface, has communicating hole passing through bottom of cavity, valve pin set insertable in positioning hole, and handle flexibly arranged at shaft passing through base plate
CN201314323Y (en) * 2008-12-15 2009-09-23 陈际军 Suction cup
CN102996611B (en) * 2012-11-23 2014-12-17 南京理工大学 Adsorbing unit with automatic switching behavior and adsorbing device
CN202971527U (en) * 2012-12-07 2013-06-05 立兆股份有限公司 Loading type sucker
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CN204180141U (en) * 2014-11-20 2015-02-25 王帆 With the mobile phone of silicon rubber suction cup
CN206129854U (en) * 2016-11-06 2017-04-26 晋江市东亨工业设计有限公司 Bring sucking disc of breathing in of gas pocket into

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Publication number Priority date Publication date Assignee Title
CN2558807Y (en) * 2002-06-26 2003-07-02 福茂塑料金属制品(嘉兴)有限公司 Suction cup
CN201415911Y (en) * 2009-03-10 2010-03-03 吕晓光 Strong vacuum sucking device
CN204851964U (en) * 2015-06-03 2015-12-09 林伟福 Powerful electromagnetic chuck device

Also Published As

Publication number Publication date
CN108105252A (en) 2018-06-01
CN106402134B (en) 2018-05-11
CN108105252B (en) 2020-09-08
CN108150517A (en) 2018-06-12
CN106402134A (en) 2017-02-15

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Effective date of registration: 20221220

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